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Commit eebdd000 authored by Venkat Sudhir's avatar Venkat Sudhir
Browse files

ASoC : msm: Add IOCTL for Listen LookAhead Buffering 



LookAhead buffering is a feature used for buffering PCM
data from codec once the successfull keyword detection is
done for a given sound model. This change defines the IOCTL
interface for LAB feature to user space. User space
can use these IOCTL to control and stop LAB.

Change-Id: I386c4855949a7b6ed0c3c12d950cd804af772f4c
Signed-off-by: default avatarVenkat Sudhir <vsudhir@codeaurora.org>
parent 63704274

include/uapi/sound/lsm_params.h

+10 −0
Original line number Original line Diff line number Diff line
@@ -16,6 +16,13 @@ enum lsm_detection_mode { 
	LSM_MODE_USER_KEYWORD_DETECTION

	LSM_MODE_USER_KEYWORD_DETECTION

};

};





enum lsm_vw_status {

	LSM_VOICE_WAKEUP_STATUS_RUNNING = 1,

	LSM_VOICE_WAKEUP_STATUS_DETECTED,

	LSM_VOICE_WAKEUP_STATUS_END_SPEECH,

	LSM_VOICE_WAKEUP_STATUS_REJECTED

};



struct snd_lsm_sound_model {

struct snd_lsm_sound_model {

	__u8 __user *data;

	__u8 __user *data;

	__u32 data_size;

	__u32 data_size;
@@ -53,4 +60,7 @@ struct snd_lsm_event_status { 
#define SNDRV_LSM_SET_SESSION_DATA _IOW('U', 0x06, struct snd_lsm_session_data)

#define SNDRV_LSM_SET_SESSION_DATA _IOW('U', 0x06, struct snd_lsm_session_data)

#define SNDRV_LSM_REG_SND_MODEL_V2 _IOW('U', 0x07,\

#define SNDRV_LSM_REG_SND_MODEL_V2 _IOW('U', 0x07,\

					struct snd_lsm_sound_model_v2)

					struct snd_lsm_sound_model_v2)

#define SNDRV_LSM_LAB_CONTROL	_IOW('U', 0x08, bool)

#define SNDRV_LSM_STOP_LAB	_IO('U', 0x09)



#endif
 
#endif